Abstract: Provided is an acrylonitrile-based copolymer for a carbon fiber which includes a sulfonate-based monomer unit, a carboxylic acid-based monomer unit, and an acrylonitrile-based monomer unit, and the acrylonitrile-based copolymer for a carbon fiber includes the sulfonate-based monomer unit at 0.55 to 1.55 mol %, and the carboxylic acid-based monomer unit at 0.60 to 1.40 mol %.

Abstract: The modular lower moving system for nuclear fuel handling includes: a lower reactor vessel assembly including nuclear fuel loaded therein; a carrier having a space allowing the lower reactor vessel assembly to be accommodated therein; a rail extending from a reactor area to a fuel handling area; a transfer cart horizontally movable along the rail; a lifting device installed at the transfer cart, movable upward or downward with respect to the transfer cart; and a drive device configured to supply power to the transfer cart and the lifting device. The method of refueling nuclear fuel using the modular lower moving system includes a carrier lifting process, a lower reactor vessel assembly detachment process, a process of accommodating the lower reactor vessel assembly in the carrier, a carrier lowering process, a transfer cart movement process, a nuclear fuel offloading process, and a nuclear fuel loading process.

Abstract: Disclosed herein is an electrode assembly configured to have a rectangular structure including two long sides and two short sides when viewed in a plan view, wherein the electrode assembly includes positive electrode tabs protruding from two or more regions of a first long side that are spaced apart from each other, the first long side being one of the two long sides, and negative electrode tabs protruding from two or more regions of a second long side that are spaced apart from each other, the second long side being the other of the two long sides, and wherein the positive electrode tabs are coupled to a positive electrode lead located at the first long side whereas the negative electrode tabs are coupled to a negative electrode lead located at the second long side.

Abstract: The present invention relates to a method of preparing a (meth)acrylonitrile-based polymer for preparing a carbon fiber, which comprises adding a reaction solution comprising a (meth)acrylonitrile-based monomer and a reaction solvent to a reactor to perform solution polymerization, performing solution polymerization under a condition in which a power consumption of the reactor is 1 to 5 kW/m3 when the reaction solution in the reactor has a viscosity of 0.1 poise or more and 250 poise or less, and performing solution polymerization under a condition in which a power consumption of the reactor is 8 to 13 kW/m3 when the reaction solution in the reactor has a viscosity of more than 250 poise and 450 poise or less.

Abstract: A content scheduling apparatus includes a content storage storing contents, a screen division information storage storing screen division information including a screen division form having division regions and time slot information including information about time slots allocated to each of the division regions, a content information storage storing content information including content list information about a list in which contents are listed for each of the division regions among the contents and content display order information including display orders each of which includes a display order of the contents listed for each of the division regions, and a schedule generator to allocate the contents listed for each of the division regions to the time slots allocated to each of the division regions according to the content display order information so that the contents listed for each of the division regions are sequentially displayed on each of the division regions.

Abstract: The present invention provides a battery module including: a battery cell laminate in which a plurality of battery cells having a structure in which an electrode assembly is inside a sealed battery case with an electrolyte solution are arranged with the sides being in contact with each other; and a cooling/buffering member, mounted beneath the battery cell laminate to support a load of the battery cell laminate, and formed of a porous structure to emit heat generated from the battery cell laminate during a charge and discharge process down the battery cell laminate.

Abstract: The disclosed relates to a polyalkylene carbonate-based resin film. More specifically, the present disclosure relates to a polyalkylene carbonate resin-based film comprising a blend resin in which a polyalkylene carbonate resin and a polyketone resin are mixed in a specified amount, thereby ensuring both excellent tensile strength and tear strength without deteriorating elongation properties possessed by the polyalkylene carbonate resin.

Abstract: An apparatus and method are provided for forming a pouch case with improved forming quality and minimized surface contact between the forming apparatus and the pouch case in the forming process to form a pouch cup. The apparatus includes a mold on which a pouch case with a plate shape can be placed, wherein the mold bulges upwards, a chamber open at bottom to the pouch case and the mold, the chamber having an inner space in which the mold can be received by lift-up of the mold or lift-down of the chamber, wherein the chamber is seated on an edge portion of the pouch case, and the chamber is equipped with a fluid input valve at top and a fluid output valve at bottom, and a fluid supply unit configured to supply a fluid via the fluid input valve to carry out pressure forming of the pouch case.

Abstract: Provided are a poly(alkylene carbonate) resin composition having improved mechanical properties, heat resistance, and processability, a preparation method of the poly(alkylene carbonate) resin composition, a molded article formed by using the composition, and a preparation method of the molded article, in which the poly(alkylene carbonate) resin composition includes poly(alkylene carbonate) having a weight average molecular weight of 100,000 g/mol to 500,000 g/mol and polyamide having a melting point of 180° C. to 194° C. at a weight ratio of 95:5 to 75:25.

Abstract: Disclosed are an electrode assembly, and a secondary lithium battery including the same. The electrode assembly is configured by alternately stacking two or more positive electrodes and one or more negative electrodes using a separator as a boundary therebetween, outermost positive electrodes are positioned on outermost opposite surfaces of the electrode assembly, respectively, each of the outermost positive electrodes includes a positive electrode current collector, a positive active material layer formed on one surface of the positive electrode current collector, and a non-reversible material coating layer formed on the other surface of the positive electrode current collector and including lithium oxide, and the non-reversible material coating layer is positioned on an outermost surface of the electrode assembly.

Abstract: A secondary battery according to the present invention comprises an electrode assembly in which an electrode and a separator are alternately stacked and a battery case accommodating the electrode assembly therein, wherein the battery case comprises a stepped part that is disposed to be stepped, an outer surface of the battery case is sealed to allow a folded part to be seated on the outer surface of the stepped part, and the electrode assembly comprises a stepped protrusion that is stepped in a shape corresponding to an inner surface of the stepped part disposed on the battery case.

Abstract: The present disclosure relates to an economical method of preparing a resin composition including a polyalkylene carbonate with improved thermal stability and processability. More specifically, the method of preparing a resin composition includes the steps of polymerizing carbon dioxide and an epoxide compound in the presence of a zinc-based catalyst and a solvent, recovering monomers, removing the catalyst and recovering raw materials, solution-blending with a thermostable resin to improve the thermal stability and processability, and removing the solvent and byproducts from the reaction mixture by using an agitated flash drum and an extrusion or kneader-type devolatilizer.

Abstract: The present invention relates to a secondary battery electrode including: a collector positioned between an external wire and an electrode active material to transfer electrons; and an electrode mixture layer coated on the collector, wherein the electrode mixture layer includes a cross-linked polymer, an electrode active material, and a binder, and the cross-linked polymer is formed by a cross-linked bond between a first polymerization unit and a second polymerization unit to have an interpenetrating polymer network (IPN), and a manufacturing method thereof.

Abstract: The present invention relates to an electrode assembly including at least two electrode plates and a separator interposed between the electrode plates, wherein indented portions are formed from lower ends of opposite sides of the electrode tab in an opposite direction to an externally extending direction of the electrode tab in a side of the electrode body in which the electrode tab externally extends, in the electrode plates.

Abstract: A secondary battery according to the present invention comprises an electrode assembly in which an electrode and a separator are alternately stacked and a battery case accommodating the electrode assembly therein, wherein the battery case comprises a stepped part that is disposed to be stepped, an outer surface of the battery case is sealed to allow a folded part to be seated on the outer surface of the stepped part, and the electrode assembly comprises a stepped protrusion that is stepped in a shape corresponding to an inner surface of the stepped part disposed on the battery case.

Abstract: The present invention provides a battery cell including: an electrode assembly having a structure in which a positive electrode, a negative electrode, and a separator are laminated, each of the positive electrode and the negative electrode having 2×n (n?2), wherein a positive tab is provided in each of odd-numbered sides, and a negative electrode tab is provided in each of even-numbered sides, and the positive electrodes and the negative electrode tabs are alternately formed along the sides; electrode terminals respectively disposed on a first side and a second side of the electrode assembly, in which outermost electrodes are disposed, or third sides which are side surfaces of the electrode assembly, being perpendicular to the first side and the second side, and a battery case having a structure of surrounding an external surface of the electrode assembly.

Abstract: A negative electrode including: a current collector; a first negative electrode active material layer positioned on at least one surface of the current collector for a negative electrode and containing a first carbonaceous active material; and a second negative electrode active material layer positioned on a surface of the first negative electrode active material layer and containing a silicon-based active material and carbon nanotubes. A lithium secondary battery including the negative electrode is also disclosed.

Abstract: The present invention provides a secondary battery in which an electrode assembly is sealed within a battery case together with an electrolyte, wherein a gas-absorbing polymer having an azo group is included in the battery cell so as to absorb gas generated within the battery.

Abstract: Disclosed herein is a battery case configured to receive an electrode assembly and an electrolytic solution therein, the electrode assembly including a positive electrode, a negative electrode, and a separator interposed between the positive electrode and the negative electrode, the battery case including a layer structure and a gas adsorption layer formed on the inner surface of the layer structure, the gas adsorption layer including a gas adsorption material layer configured to adsorb a reaction gas that may be generated within the battery case during abnormal functioning of the electrode assembly, and and a blocking layer formed on an exposed surface of the gas adsorption material layer, the blocking layer configured to prevent the gas adsorption material layer from being exposed to an ambient gas during assembly of the battery case.

Abstract: Disclosed herein are an electrode assembly including a plurality of unit cells arranged in a height direction on the basis of a plane, at least two of the unit cells having different planar sizes, and a space portion defined by the difference in planar size between the arranged unit cells, wherein each of the unit cells includes at least one electrode plate, electrode tabs protruding from the electrode plates of the unit cells are electrically connected to an electrode lead via a tab-lead coupling part, and the tab-lead coupling part is located in the space portion, and a battery cell including the same.